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GPS Based Phasor Technology in Electrical Power System

Rohini P. Haridas
Electrical Engineering Department, S.S.G.M.C.E, Shegaon, India
Abstract—The electrical power system has been increasing in complexity at rapid rate in last few decades. Traditional SCADA systems are based on steady state power flow analysis and therefore cannot observe the dynamic characteristic of the system. Synchronized phasor measurement units (PMUs) were first introduced in early 1980s. Synchronized phasor measurements are becoming an important element of wide area measurement systems used in advanced power system monitoring, protection, and control applications. Phasor measurement units (PMUs) are power system devices that provide synchronized measurements of real-time phasors of voltages and currents. Synchronization is achieved by same-time sampling of voltage and current waveforms using timing signals from the Global Positioning System. The advantage of referring phase angle to a global reference time is helpful in capturing the wide area snap shot of the power system [1]. The GPS based phasor measurement technology provides the dynamic view of power system. This paper gives the introduction to GPS based phasor measurement techniques in power system.
Index Terms—GPS, synchrophasor, PMU, SCADA

Cite: Rohini P. Haridas, "GPS Based Phasor Technology in Electrical Power System," International Journal of Electronics and Electrical Engineering, Vol. 3, No. 6, pp. 493-496, December 2015. doi: 10.12720/ijeee.3.6.493-496
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